SafeGuard Enterprise Data Exchange end users can neither delete a locally generated key from their keyring, nor change the passphrase of it, as this could lead to situations where data could no longer be decrypted (e.g. data on a removable device which is encrypted with the local key would still require the old passphrase).
First seen in
SafeGuard Data Exchange
SafeGuard Cloud Storage
What To Do
A SafeGuard Enterprise Security Officer can remove locally generated keys from a SafeGuard Enterprise end user's keyring using the Management Center.